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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/45845/
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(Updated April 7, 2016, 8:21 p.m.)


Review request for Ambari, Dmytro Sen, Sumit Mohanty, and Sid Wagle.


Changes
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Unit test added.


Bugs: AMBARI-15694
    https://issues.apache.org/jira/browse/AMBARI-15694


Repository: ambari


Description
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When querying a large number of Hosts, AMS API returns a truncated set of 
data-points. The number of data-points is
Metrics service default result limit / no. of hosts

If the Metrics service default result limit is set to 15840 (current default), 
then for 900 hosts, the data-points that will be returned for each host will be 
18.

FIX
Take into account the hostnames requested also, while calculating calculating 
result set size estimate.


Diffs (updated)
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ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/query/PhoenixTransactSQL.java
 c8cef27 
  
ambari-metrics/ambari-metrics-timelineservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/TestPhoenixTransactSQL.java
 6bf15c7 

Diff: https://reviews.apache.org/r/45845/diff/


Testing
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Manually tested all charts in Ambari Web in all time ranges.

Triggered exception message through Grafana.


Thanks,

Aravindan Vijayan

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